Thanks @TtownMD
. You have been on fire with your helpful responses and I appreciate it. I'll assume you are simply taking the standard widths in U, F, and K last. I should be a 43.5 then as I'm a 9.5UK for Rain. Thanks

Gosh, we all have such different experiences with Vass.
I wear a UK8.5 in Rain (can go down to UK8 for derbies / suede), UK9 in Simpson.
EU42 in F last, EU42.5 in U last, EU 43 in K last (but I think I can go with EU42.5) , all in F width.
8.5E for EG.

Hey do you use any insert for your K last shoes? I am just like you by the way & take 42.5 on all U k & F last

I also think that generally, for wet weather, or rough weather conditions...
I would make up a boot / derby shoe, in scotch grain, with commando or dainite soles, goyser stitch / norwegian / storm welt.
Get a really chunky pair of ass kickers.
I don't know about kudu, but CXL would be great I agree.

I picked up carmina for that Scotch grain NST Dainite sole & thx you. I will look into vass also

@ThunderMarch I think we are both from Southeast Asia. I wear my shell even when it's raining. A good wet brushing at the end of the day in case it does get rained on. Our advantage is we don't get salt on our streets which is really what ruins leather.